Non-conducting compound



(No Model.)

. S. GRUBB.

NON GONDUCTING GOMPOUND.

Patented July 29, 1884.

N4 PETERS, Phow-Lnhogmpner, wlungmu. D c.

'Illuminativ STATES PATENT FFICE.

WILLIAM S. GBUBB, OF BABABO, WISCONSIN.

NGN-CONDUCTING ClVlPOUND.

SPECIFICATION forming part of Letters Patent No. 302,630, dated July 29, 1884.

' Application led March 7, 1884. (No specimens.)

To all whom, it may concern Be it known that I, WILLIAM S. GRUBB, of Baraboo, county of Sauk, and State of Visconsin, have invented certain new and useful Im-` provements in Non-Conducting Compounds, of which the following is a full, clear, and eX act description,` reference being had to the accompanying drawing, and to the letters of reference marked thereon.

l My invention has relation to compounds employed for retaining or excluding heat or cold, and ordinarily known as nonconductors of heat77 or non-conducting compounds.77 These are applied upon steam and other boilers, upon steam-pipes and other heat-conducting apparatus, and also upon pipes and vessels containing cooling substances, and generally in any and all situations wherein it may be desired to prevent radiation or absorption of heat.

The object of my invention is to produce a simple, cheap, efficient, and easily-applicable compound ofthe above-mentioned class, which will be capable of use as are the compounds of said class,and at the same time more readily applicable for the protection of buidings and exposed walls.

To this end my invention consists in a new and useful compound, as will be herein first fully described, and then pointed out in the claims.

In the accompanying drawing I have shown an elevation of a heater or boiler having` my improved compound applied thereon,parts being broken out to show the application. This illustration is deemed sufficient to indicate the manner of applying the compound in any situation.

A represents a boiler or other heater.

For very hot surfaces I prepare the compound about as follows: Take of kaolin or tine clay, one bushel; salt, two quarts; lime, one peck; hair, two pounds; jute, one pound. These are mixed together with water to proper consistency for molding, and applied to the` surface and allowed to dry, a sufficient quantity being applied to effect the desired insulation. This layer is indicated at B.

For surfaces less highly heated I apply a layer, as B, and upon this a second layer, C, somewhat cheaper than B, made up about as follows: Take of kaolin or fine clay, one-half bushel; salt, one pint; lime, one quart; hair, one pound; jute, three pounds; ground paper or `paperpulp, live pounds; glue. one and oneshalf pound; ground straw. two pounds. This is mixed with water and applied in a. manner similar to B. preventthat long-continued dryness to which, Without it. the compound would be subjected, and the hair. possvssing lading qualities. i isures the durability ol.' the mass. preventing crumbling and breaking away from the surfaces to which applied.

For exposed situations Inlay protect the covering by a wire-netting, as I), shown on the right ofthe ligure; or, in ease ol' application to steam-pipes, l may apply a canvas covering, as indicated at louthe left, and this may be whitewashed, it' desired. i

For the protection ot' buildings and wall; to exclude cold, and for lillingin purposes. I prefer to make the compound as above described for the layer C. lt is :applicable in the plastic state, and on extensive plain walls maybe supported by projecting nails or pinst In may be appliedte cracks and joints, same as mortar,

The proportions may be slightly varied within the usual limits without materially al tering the compound.

I-Iaving now fully described my invention, A

what I claim as new, and desire to Letters Patent, is-

I. The herein s described non s conducting compound, composed ofkaolin,salt, lime, hair, and jute united with water in about the proportions specified, and applied substantially in the manner and for the purposes set forth.

2. The hereindescribed boiler-covering, consisting of the two layers B and C, the layer B being composed of kaolin, salt, lime, hair, and jute, and the layer C being composed of kaolin, salt, lime, hair, jute, paper-pulp, glue, and ground straw, substantially as explained, and for the purposes set forth.

In testimony that I claim the foregoing I have hereunto set my hand in the presence of two witnesses. Y

XVM. S. GRUBB.

secure by Vitrlesses:

WORTH Oscoop, JOHN BUCKLER.

lhe salt operates to 

